Ключевые слова: against, alone, background, concept, contemplation, depressed, depression, developing, emotion, empty, epidemic, expression, fear failure, feeling, home, human, isolation, lifestyle, loneliness, loneliness epidemic, lonely, lonely person, melancholy, mental health, mood, negative emotion, one, pain, pensive, people, person, problem, sad, sadness, shadow, silhouette, single, social connection, solitude, solo, stress, stress worry, stressed, tired, trouble, unhappy, up, wall, young,